| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Selvin Xavier | 1598 | 85.91% | 7 | 63.64% |
| Devesh Sharma | 180 | 9.68% | 2 | 18.18% |
| Eddie Wai | 79 | 4.25% | 1 | 9.09% |
| Somnath Kotur | 3 | 0.16% | 1 | 9.09% |
| Total | 1860 | 11 |
/* * Broadcom NetXtreme-E RoCE driver. * * Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term * Broadcom refers to Broadcom Limited and/or its subsidiaries. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * BSD license below: * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * Description: Fast Path Operators (header) */ #ifndef __BNXT_QPLIB_FP_H__ #define __BNXT_QPLIB_FP_H__ struct bnxt_qplib_srq { struct bnxt_qplib_pd *pd; struct bnxt_qplib_dpi *dpi; void __iomem *dbr_base; u64 srq_handle; u32 id; u32 max_wqe; u32 max_sge; u32 threshold; bool arm_req; struct bnxt_qplib_cq *cq; struct bnxt_qplib_hwq hwq; struct bnxt_qplib_swq *swq; struct scatterlist *sglist; int start_idx; int last_idx; u32 nmap; u16 eventq_hw_ring_id; spinlock_t lock; /* protect SRQE link list */ }; struct bnxt_qplib_sge { u64 addr; u32 lkey; u32 size; }; #define BNXT_QPLIB_MAX_SQE_ENTRY_SIZE sizeof(struct sq_send) #define SQE_CNT_PER_PG (PAGE_SIZE / BNXT_QPLIB_MAX_SQE_ENTRY_SIZE) #define SQE_MAX_IDX_PER_PG (SQE_CNT_PER_PG - 1) static inline u32 get_sqe_pg(u32 val) { return ((val & ~SQE_MAX_IDX_PER_PG) / SQE_CNT_PER_PG); } static inline u32 get_sqe_idx(u32 val) { return (val & SQE_MAX_IDX_PER_PG); } #define BNXT_QPLIB_MAX_PSNE_ENTRY_SIZE sizeof(struct sq_psn_search) #define PSNE_CNT_PER_PG (PAGE_SIZE / BNXT_QPLIB_MAX_PSNE_ENTRY_SIZE) #define PSNE_MAX_IDX_PER_PG (PSNE_CNT_PER_PG - 1) static inline u32 get_psne_pg(u32 val) { return ((val & ~PSNE_MAX_IDX_PER_PG) / PSNE_CNT_PER_PG); } static inline u32 get_psne_idx(u32 val) { return (val & PSNE_MAX_IDX_PER_PG); } #define BNXT_QPLIB_QP_MAX_SGL 6 struct bnxt_qplib_swq { u64 wr_id; int next_idx; u8 type; u8 flags; u32 start_psn; u32 next_psn; struct sq_psn_search *psn_search; }; struct bnxt_qplib_swqe { /* General */ #define BNXT_QPLIB_FENCE_WRID 0x46454E43 /* "FENC" */ u64 wr_id; u8 reqs_type; u8 type; #define BNXT_QPLIB_SWQE_TYPE_SEND 0 #define BNXT_QPLIB_SWQE_TYPE_SEND_WITH_IMM 1 #define BNXT_QPLIB_SWQE_TYPE_SEND_WITH_INV 2 #define BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE 4 #define BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE_WITH_IMM 5 #define BNXT_QPLIB_SWQE_TYPE_RDMA_READ 6 #define BNXT_QPLIB_SWQE_TYPE_ATOMIC_CMP_AND_SWP 8 #define BNXT_QPLIB_SWQE_TYPE_ATOMIC_FETCH_AND_ADD 11 #define BNXT_QPLIB_SWQE_TYPE_LOCAL_INV 12 #define BNXT_QPLIB_SWQE_TYPE_FAST_REG_MR 13 #define BNXT_QPLIB_SWQE_TYPE_REG_MR 13 #define BNXT_QPLIB_SWQE_TYPE_BIND_MW 14 #define BNXT_QPLIB_SWQE_TYPE_RECV 128 #define BNXT_QPLIB_SWQE_TYPE_RECV_RDMA_IMM 129 u8 flags; #define BNXT_QPLIB_SWQE_FLAGS_SIGNAL_COMP BIT(0) #define BNXT_QPLIB_SWQE_FLAGS_RD_ATOMIC_FENCE BIT(1) #define BNXT_QPLIB_SWQE_FLAGS_UC_FENCE BIT(2) #define BNXT_QPLIB_SWQE_FLAGS_SOLICIT_EVENT BIT(3) #define BNXT_QPLIB_SWQE_FLAGS_INLINE BIT(4) struct bnxt_qplib_sge sg_list[BNXT_QPLIB_QP_MAX_SGL]; int num_sge; /* Max inline data is 96 bytes */ u32 inline_len; #define BNXT_QPLIB_SWQE_MAX_INLINE_LENGTH 96 u8 inline_data[BNXT_QPLIB_SWQE_MAX_INLINE_LENGTH]; union { /* Send, with imm, inval key */ struct { union { __be32 imm_data; u32 inv_key; }; u32 q_key; u32 dst_qp; u16 avid; } send; /* Send Raw Ethernet and QP1 */ struct { u16 lflags; u16 cfa_action; u32 cfa_meta; } rawqp1; /* RDMA write, with imm, read */ struct { union { __be32 imm_data; u32 inv_key; }; u64 remote_va; u32 r_key; } rdma; /* Atomic cmp/swap, fetch/add */ struct { u64 remote_va; u32 r_key; u64 swap_data; u64 cmp_data; } atomic; /* Local Invalidate */ struct { u32 inv_l_key; } local_inv; /* FR-PMR */ struct { u8 access_cntl; u8 pg_sz_log; bool zero_based; u32 l_key; u32 length; u8 pbl_pg_sz_log; #define BNXT_QPLIB_SWQE_PAGE_SIZE_4K 0 #define BNXT_QPLIB_SWQE_PAGE_SIZE_8K 1 #define BNXT_QPLIB_SWQE_PAGE_SIZE_64K 4 #define BNXT_QPLIB_SWQE_PAGE_SIZE_256K 6 #define BNXT_QPLIB_SWQE_PAGE_SIZE_1M 8 #define BNXT_QPLIB_SWQE_PAGE_SIZE_2M 9 #define BNXT_QPLIB_SWQE_PAGE_SIZE_4M 10 #define BNXT_QPLIB_SWQE_PAGE_SIZE_1G 18 u8 levels; #define PAGE_SHIFT_4K 12 __le64 *pbl_ptr; dma_addr_t pbl_dma_ptr; u64 *page_list; u16 page_list_len; u64 va; } frmr; /* Bind */ struct { u8 access_cntl; #define BNXT_QPLIB_BIND_SWQE_ACCESS_LOCAL_WRITE BIT(0) #define BNXT_QPLIB_BIND_SWQE_ACCESS_REMOTE_READ BIT(1) #define BNXT_QPLIB_BIND_SWQE_ACCESS_REMOTE_WRITE BIT(2) #define BNXT_QPLIB_BIND_SWQE_ACCESS_REMOTE_ATOMIC BIT(3) #define BNXT_QPLIB_BIND_SWQE_ACCESS_WINDOW_BIND BIT(4) bool zero_based; u8 mw_type; u32 parent_l_key; u32 r_key; u64 va; u32 length; } bind; }; }; #define BNXT_QPLIB_MAX_RQE_ENTRY_SIZE sizeof(struct rq_wqe) #define RQE_CNT_PER_PG (PAGE_SIZE / BNXT_QPLIB_MAX_RQE_ENTRY_SIZE) #define RQE_MAX_IDX_PER_PG (RQE_CNT_PER_PG - 1) #define RQE_PG(x) (((x) & ~RQE_MAX_IDX_PER_PG) / RQE_CNT_PER_PG) #define RQE_IDX(x) ((x) & RQE_MAX_IDX_PER_PG) struct bnxt_qplib_q { struct bnxt_qplib_hwq hwq; struct bnxt_qplib_swq *swq; struct scatterlist *sglist; u32 nmap; u32 max_wqe; u16 q_full_delta; u16 max_sge; u32 psn; bool condition; bool single; bool send_phantom; u32 phantom_wqe_cnt; u32 phantom_cqe_cnt; u32 next_cq_cons; bool flushed; }; struct bnxt_qplib_qp { struct bnxt_qplib_pd *pd; struct bnxt_qplib_dpi *dpi; u64 qp_handle; #define BNXT_QPLIB_QP_ID_INVALID 0xFFFFFFFF u32 id; u8 type; u8 sig_type; u32 modify_flags; u8 state; u8 cur_qp_state; u32 max_inline_data; u32 mtu; u8 path_mtu; bool en_sqd_async_notify; u16 pkey_index; u32 qkey; u32 dest_qp_id; u8 access; u8 timeout; u8 retry_cnt; u8 rnr_retry; u64 wqe_cnt; u32 min_rnr_timer; u32 max_rd_atomic; u32 max_dest_rd_atomic; u32 dest_qpn; u8 smac[6]; u16 vlan_id; u8 nw_type; struct bnxt_qplib_ah ah; #define BTH_PSN_MASK ((1 << 24) - 1) /* SQ */ struct bnxt_qplib_q sq; /* RQ */ struct bnxt_qplib_q rq; /* SRQ */ struct bnxt_qplib_srq *srq; /* CQ */ struct bnxt_qplib_cq *scq; struct bnxt_qplib_cq *rcq; /* IRRQ and ORRQ */ struct bnxt_qplib_hwq irrq; struct bnxt_qplib_hwq orrq; /* Header buffer for QP1 */ int sq_hdr_buf_size; int rq_hdr_buf_size; /* * Buffer space for ETH(14), IP or GRH(40), UDP header(8) * and ib_bth + ib_deth (20). * Max required is 82 when RoCE V2 is enabled */ #define BNXT_QPLIB_MAX_QP1_SQ_HDR_SIZE_V2 86 /* Ethernet header = 14 */ /* ib_grh = 40 (provided by MAD) */ /* ib_bth + ib_deth = 20 */ /* MAD = 256 (provided by MAD) */ /* iCRC = 4 */ #define BNXT_QPLIB_MAX_QP1_RQ_ETH_HDR_SIZE 14 #define BNXT_QPLIB_MAX_QP1_RQ_HDR_SIZE_V2 512 #define BNXT_QPLIB_MAX_GRH_HDR_SIZE_IPV4 20 #define BNXT_QPLIB_MAX_GRH_HDR_SIZE_IPV6 40 #define BNXT_QPLIB_MAX_QP1_RQ_BDETH_HDR_SIZE 20 void *sq_hdr_buf; dma_addr_t sq_hdr_buf_map; void *rq_hdr_buf; dma_addr_t rq_hdr_buf_map; struct list_head sq_flush; struct list_head rq_flush; }; #define BNXT_QPLIB_MAX_CQE_ENTRY_SIZE sizeof(struct cq_base) #define CQE_CNT_PER_PG (PAGE_SIZE / BNXT_QPLIB_MAX_CQE_ENTRY_SIZE) #define CQE_MAX_IDX_PER_PG (CQE_CNT_PER_PG - 1) #define CQE_PG(x) (((x) & ~CQE_MAX_IDX_PER_PG) / CQE_CNT_PER_PG) #define CQE_IDX(x) ((x) & CQE_MAX_IDX_PER_PG) #define ROCE_CQE_CMP_V 0 #define CQE_CMP_VALID(hdr, raw_cons, cp_bit) \ (!!((hdr)->cqe_type_toggle & CQ_BASE_TOGGLE) == \ !((raw_cons) & (cp_bit))) static inline bool bnxt_qplib_queue_full(struct bnxt_qplib_q *qplib_q) { return HWQ_CMP((qplib_q->hwq.prod + qplib_q->q_full_delta), &qplib_q->hwq) == HWQ_CMP(qplib_q->hwq.cons, &qplib_q->hwq); } struct bnxt_qplib_cqe { u8 status; u8 type; u8 opcode; u32 length; u64 wr_id; union { __be32 immdata; u32 invrkey; }; u64 qp_handle; u64 mr_handle; u16 flags; u8 smac[6]; u32 src_qp; u16 raweth_qp1_flags; u16 raweth_qp1_errors; u16 raweth_qp1_cfa_code; u32 raweth_qp1_flags2; u32 raweth_qp1_metadata; u8 raweth_qp1_payload_offset; u16 pkey_index; }; #define BNXT_QPLIB_QUEUE_START_PERIOD 0x01 struct bnxt_qplib_cq { struct bnxt_qplib_dpi *dpi; void __iomem *dbr_base; u32 max_wqe; u32 id; u16 count; u16 period; struct bnxt_qplib_hwq hwq; u32 cnq_hw_ring_id; struct bnxt_qplib_nq *nq; bool resize_in_progress; struct scatterlist *sghead; u32 nmap; u64 cq_handle; #define CQ_RESIZE_WAIT_TIME_MS 500 unsigned long flags; #define CQ_FLAGS_RESIZE_IN_PROG 1 wait_queue_head_t waitq; struct list_head sqf_head, rqf_head; atomic_t arm_state; spinlock_t compl_lock; /* synch CQ handlers */ /* Locking Notes: * QP can move to error state from modify_qp, async error event or error * CQE as part of poll_cq. When QP is moved to error state, it gets added * to two flush lists, one each for SQ and RQ. * Each flush list is protected by qplib_cq->flush_lock. Both scq and rcq * flush_locks should be acquired when QP is moved to error. The control path * operations(modify_qp and async error events) are synchronized with poll_cq * using upper level CQ locks (bnxt_re_cq->cq_lock) of both SCQ and RCQ. * The qplib_cq->flush_lock is required to synchronize two instances of poll_cq * of the same QP while manipulating the flush list. */ spinlock_t flush_lock; /* QP flush management */ }; #define BNXT_QPLIB_MAX_IRRQE_ENTRY_SIZE sizeof(struct xrrq_irrq) #define BNXT_QPLIB_MAX_ORRQE_ENTRY_SIZE sizeof(struct xrrq_orrq) #define IRD_LIMIT_TO_IRRQ_SLOTS(x) (2 * (x) + 2) #define IRRQ_SLOTS_TO_IRD_LIMIT(s) (((s) >> 1) - 1) #define ORD_LIMIT_TO_ORRQ_SLOTS(x) ((x) + 1) #define ORRQ_SLOTS_TO_ORD_LIMIT(s) ((s) - 1) #define BNXT_QPLIB_MAX_NQE_ENTRY_SIZE sizeof(struct nq_base) #define NQE_CNT_PER_PG (PAGE_SIZE / BNXT_QPLIB_MAX_NQE_ENTRY_SIZE) #define NQE_MAX_IDX_PER_PG (NQE_CNT_PER_PG - 1) #define NQE_PG(x) (((x) & ~NQE_MAX_IDX_PER_PG) / NQE_CNT_PER_PG) #define NQE_IDX(x) ((x) & NQE_MAX_IDX_PER_PG) #define NQE_CMP_VALID(hdr, raw_cons, cp_bit) \ (!!(le32_to_cpu((hdr)->info63_v[0]) & NQ_BASE_V) == \ !((raw_cons) & (cp_bit))) #define BNXT_QPLIB_NQE_MAX_CNT (128 * 1024) #define NQ_CONS_PCI_BAR_REGION 2 #define NQ_DB_KEY_CP (0x2 << CMPL_DOORBELL_KEY_SFT) #define NQ_DB_IDX_VALID CMPL_DOORBELL_IDX_VALID #define NQ_DB_IRQ_DIS CMPL_DOORBELL_MASK #define NQ_DB_CP_FLAGS_REARM (NQ_DB_KEY_CP | \ NQ_DB_IDX_VALID) #define NQ_DB_CP_FLAGS (NQ_DB_KEY_CP | \ NQ_DB_IDX_VALID | \ NQ_DB_IRQ_DIS) #define NQ_DB_REARM(db, raw_cons, cp_bit) \ writel(NQ_DB_CP_FLAGS_REARM | ((raw_cons) & ((cp_bit) - 1)), db) #define NQ_DB(db, raw_cons, cp_bit) \ writel(NQ_DB_CP_FLAGS | ((raw_cons) & ((cp_bit) - 1)), db) struct bnxt_qplib_nq { struct pci_dev *pdev; int vector; cpumask_t mask; int budget; bool requested; struct tasklet_struct worker; struct bnxt_qplib_hwq hwq; u16 bar_reg; u16 bar_reg_off; u16 ring_id; void __iomem *bar_reg_iomem; int (*cqn_handler)(struct bnxt_qplib_nq *nq, struct bnxt_qplib_cq *cq); int (*srqn_handler)(struct bnxt_qplib_nq *nq, struct bnxt_qplib_srq *srq, u8 event); struct workqueue_struct *cqn_wq; char name[32]; }; struct bnxt_qplib_nq_work { struct work_struct work; struct bnxt_qplib_nq *nq; struct bnxt_qplib_cq *cq; }; void bnxt_qplib_nq_stop_irq(struct bnxt_qplib_nq *nq, bool kill); void bnxt_qplib_disable_nq(struct bnxt_qplib_nq *nq); int bnxt_qplib_nq_start_irq(struct bnxt_qplib_nq *nq, int nq_indx, int msix_vector, bool need_init); int bnxt_qplib_enable_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq, int nq_idx, int msix_vector, int bar_reg_offset, int (*cqn_handler)(struct bnxt_qplib_nq *nq, struct bnxt_qplib_cq *cq), int (*srqn_handler)(struct bnxt_qplib_nq *nq, struct bnxt_qplib_srq *srq, u8 event)); int bnxt_qplib_create_srq(struct bnxt_qplib_res *res, struct bnxt_qplib_srq *srq); int bnxt_qplib_modify_srq(struct bnxt_qplib_res *res, struct bnxt_qplib_srq *srq); int bnxt_qplib_query_srq(struct bnxt_qplib_res *res, struct bnxt_qplib_srq *srq); int bnxt_qplib_destroy_srq(struct bnxt_qplib_res *res, struct bnxt_qplib_srq *srq); int bnxt_qplib_post_srq_recv(struct bnxt_qplib_srq *srq, struct bnxt_qplib_swqe *wqe); int bnxt_qplib_create_qp1(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp); int bnxt_qplib_create_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp); int bnxt_qplib_modify_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp); int bnxt_qplib_query_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp); int bnxt_qplib_destroy_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp); void bnxt_qplib_clean_qp(struct bnxt_qplib_qp *qp); void bnxt_qplib_free_qp_res(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp); void *bnxt_qplib_get_qp1_sq_buf(struct bnxt_qplib_qp *qp, struct bnxt_qplib_sge *sge); void *bnxt_qplib_get_qp1_rq_buf(struct bnxt_qplib_qp *qp, struct bnxt_qplib_sge *sge); u32 bnxt_qplib_get_rq_prod_index(struct bnxt_qplib_qp *qp); dma_addr_t bnxt_qplib_get_qp_buf_from_index(struct bnxt_qplib_qp *qp, u32 index); void bnxt_qplib_post_send_db(struct bnxt_qplib_qp *qp); int bnxt_qplib_post_send(struct bnxt_qplib_qp *qp, struct bnxt_qplib_swqe *wqe); void bnxt_qplib_post_recv_db(struct bnxt_qplib_qp *qp); int bnxt_qplib_post_recv(struct bnxt_qplib_qp *qp, struct bnxt_qplib_swqe *wqe); int bnxt_qplib_create_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq); int bnxt_qplib_destroy_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq); int bnxt_qplib_poll_cq(struct bnxt_qplib_cq *cq, struct bnxt_qplib_cqe *cqe, int num, struct bnxt_qplib_qp **qp); bool bnxt_qplib_is_cq_empty(struct bnxt_qplib_cq *cq); void bnxt_qplib_req_notify_cq(struct bnxt_qplib_cq *cq, u32 arm_type); void bnxt_qplib_free_nq(struct bnxt_qplib_nq *nq); int bnxt_qplib_alloc_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq); void bnxt_qplib_add_flush_qp(struct bnxt_qplib_qp *qp); void bnxt_qplib_acquire_cq_locks(struct bnxt_qplib_qp *qp, unsigned long *flags); void bnxt_qplib_release_cq_locks(struct bnxt_qplib_qp *qp, unsigned long *flags); int bnxt_qplib_process_flush_list(struct bnxt_qplib_cq *cq, struct bnxt_qplib_cqe *cqe, int num_cqes); void bnxt_qplib_flush_cqn_wq(struct bnxt_qplib_qp *qp); #endif /* __BNXT_QPLIB_FP_H__ */
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